Sidee si sax ah loogu daraa HEC Rinjiga Latex?

Hydroxyethyl cellulose (HEC) waa midka ugu badan ee la isticmaalo dhumuclaha nonionic iyo rheology wax ka beddelka rinjiga cinjirka. Waxay si wax ku ool ah u wanaajisaa qaab-dhismeedka viscosity, simaynta guryaha, xasilloonida kaydinta, iyo waxqabadka ka-hortagga qashinka ee nidaamka. Ku darida HEC si sax ah qaababka rinjiga cinjirka kaliya ma saameeyaan qiimaha alaabta laakiin sidoo kale waxay si toos ah u saameysaa tayada filimka rinjiga iyo dareenka codsiga. Kuwa soo socdaa waxay bixinayaan sharraxaad habaysan oo afar dhinac ah: xulashada, qiyaasta, habka isku-darka, iyo taxaddarrada.

1. Doorashada Fasalka Viscosity ee Haboon ee ku salaysan Nooca Rinjiga Latex

1.1. Rinjiga Latex gidaarka gudaha (Dhaqaalaha/Nooca caadiga ah)

Waxaa lagu talinayaa in la isticmaalo viscosity dhexdhexaad ah ilaa-sare HEC oo leh mawjad dhan 30,000-60,000mPa·s. Faa'iidooyinkeeda waxaa ka mid ah waxtarka dhumucda sare, waxtarka wanaagsan ee kharashka, iyo awoodda lagu daboolayo heerarka iyo shuruudaha thixotropic ee rinjiyada gudaha ee caadiga ah.

1.2. Rinjiyada gidaarada gudaha ee dhamaadka-sare (Matte, Satin)

Alaabooyinka viscosity-ga sare leh oo leh mawjadaha 60,000-100,000mPa·s waa la dooran karaa, taasoo keenaysa dhammayn jilicsan, dhumuc weyn leh iyo sifooyin ka-hortagga-splater ka wanaagsan inta lagu jiro codsiga.

1.3. Rinjiyadaha Latex ee gidaarka ee dibadda

Si loo hagaajiyo ka-hortagga-soo-baxa iyo iska caabbinta biyaha, viscosity dhexdhexaad ah HEC (30,000-60,000mPa·s) sida caadiga ah loo isticmaalo, inta badan lagu daro ethers cellulose ama dhumucyada PU si loo gaaro xoog wax soo saar wanaagsan iyo xasilloonida kaydinta.

1.4. Nidaamyada PVC ee Sare (Rinjiyada Latex Nooca Putty)

HEC-yada waxtarka leh ee dhumucda sare leh ayaa looga baahan yahay si loo hubiyo sharafta qaabdhismeedka oo looga hortago dejinta iyo kala soocidda.

Guud ahaan, doorashada darajada viscosity waa in ay isku dheelitirto saamaynta dhumucda, qiimaha, iyo waxqabadka codsiga; viscosity sare mar walba ma roona.

2. Xakamaynta macquulka ah ee HEC ku darista

2.1. 0.2%-0.6% (ku salaysan alaabta la dhammeeyey)

Rinjiga gidaarka caadiga ah ee gudaha ayaa caadi ahaan isticmaala 0.25%-0.40%, halka dahaarka-dhamaadka sare ama nidaamyada-PVC-sare ay gaari karaan agagaarka 0.5%.

2.2. Qadarka dheeriga ah waa in waxoogaa la hagaajiyaa iyadoo lagu salaynayo arrimahan soo socda:

Qiyaasta midabka iyo buuxinta iyo qiimaha PVC: Markasta oo ay sarreyso PVC-ga, HEC badan ayaa loo baahan yahay.

Nooca Emulsion: Emulsions leh qayb sare oo ah walxaha samaynta filimada iyo isku xidhka xooggan waxay u baahan yihiin dhumuc yar.

Viscosity bartilmaameedka: Hababka kala duwan ee codsiga waxay keenaan kala duwanaansho weyn oo ku saabsan viscosity-ka loo baahan yahay.

Waafaqid dhumucyada kale: Haddii lagu daro HEUR, ASE, iwm., qiyaasta HEC si habboon ayaa loo dhimi karaa.

RQiyaasta HEC ee fudud ee la fududayn karo waa inay gaadhaa: mawjadaha taagan ee dhexdhexaadka ah, xasilloonida nidaamka, majirto kala-bax inta lagu jiro codsiga, iyo dareen cadaysho siman.

3. Hababka Isku-darka iyo Kala-diridda Saxda ah

3.1. Habka Xalka Kaydka ee horay loo sii diyaariyay (waxaa lagu talinayaa)

U diyaari xal hufan oo viscous ah ee HEC marka loo eego 1:20-1:40 ka hor intaadan ku darin nidaamka rinjiga cinjirka. Faa'iidooyinka:

Kala diri fiican, ma jiraan qaybo kalluun-indho ah

Waxay fududaysaa hagaajinta viscosity-ka

Waxay ka fogaataa saamaynta dhumucda deegaanka ee emulsion-ka

Xalka kaydka waa in la kala diraa 1-2 saacadood ka hor.

3.2. Habka Ku darista Budada Qalalan ee Tooska ah (Waxay u baahan tahay Xakameyn Adag)

Haddii lagu daro budada qallalan ay lagama maarmaan tahay, raac tilmaamahan:

Si tartiib ah u kala shaandheeya inta aad ku kala firdhiso xawli sare si aad uga hortagto isku jiid

Ku dar inta lagu jiro marxaladda aqueous, si buuxda u milmay ka hor intaadan ku darin emulsion

Wakhtiga fidinta waa in aanu ka yarayn 20-30 daqiiqo

Ku dar wakiilka qoynta ka hor ama isticmaal HEC-dhakhso u milma haddii loo baahdo si loo yareeyo isku urursiga.

4. Farsamooyinka lagu Hagaajinayo Saamaynta Rheological ee Nidaamka

4.1. Ku isticmaal HEUR/ASE

Nidaamka isku dhafan wuxuu si weyn u wanaajiyaa thixotropy, wuxuu wanaajiyaa ka-hortagga-splater iyo sifooyinka, wuxuuna ka dhigayaa codsiga mid sahlan.

4.2. Xakamaynta pH iyo Nidaamka Ilaalinta

HEC waxay u shaqeysaa sida ugu fiican marka loo eego qiyaasta pH ee 7-11; acidity xad-dhaaf ah ayaa si fudud u dhimi kara viscosity. Qaar ka mid ah waxyaabaha ilaaliya ayaa laga yaabaa inay saameeyaan heerka kala dirida HEC.

4.3. Xakamaynta Xasiloonida Kaydinta

Inta lagu jiro kaydinta muddada-dheer ee heerkulka sare, HEC-ku-jiidka sare ayaa laga yaabaa inay la kulanto hoos u dhac ku yimaadda viscosity. Sidaa darteed, alaabada dusha wax laga beddelay ayaa la dooran karaa.

4.4. Ka-hortagga dhumucda beenta ah iyo dhumucda

Ka dib marka la gaaro viscosity bartilmaameedka qaabeynta, cadayashada, rogrogmada, iyo imtixaanada hoos u dhaca waa in la sameeyaa. Saamiga HEC waa in si fiican loo hagaajiyaa si loo hubiyo in la dareemo codsi joogto ah.

Ku darida ku habboon eeHEC Rinjiga cinjirka wuxuu u baahan yahay tixgelin dhammaystiran ee xulashada heerka viscosity, xakamaynta qiyaasta, habka kala dirida, iyo hagaajinta qaab dhismeedka rheological. Doorashada HEC saxda ah iyo u isticmaalkeeda si sax ah kaliya ma wanaajiso kartida shaqada iyo tayada muuqaalka rinjiga laakiin sidoo kale waxay kor u qaadaysaa xasiloonida kaydinta iyo heerka sheyga, taasoo ka dhigaysa arrin muhiim ah oo hagaajinaysa tayada rinjiga cinjirka.